40 PROCEEDINGS OP THE AMERICAN ACADEMY. 



Insertion-cell black and thick, the blackening involving the greater 

 portion of the basal cell of the outer appendage. Appendages very 

 similar to those of L. perplexa, the basal cells of the branches some- 

 what darker, the distal part somewhat shorter. Spores 90 X 7 fi. 

 Perithecia 450-580 X 60-75 /j. including stalk (40 /j). Receptacle 

 500 fx to over 1 mm. x 70-75 j u. Appendages 275-375 p. Total 

 length to tip of perithecium 1.65 mm. 



On the inferior surface of the prothorax of Galerita carbonaria 

 Maunerh., Brazil; Berlin Museum, No. 960. 



Laboulbenia Hawaiiensis nov. sp. 



Perithecium variously suffused with dark olive brown, sometimes 

 transparent brownish yellow, becoming nearly opaque, about one quar- 

 ter, or only the tip, free from the receptacle, rather short and stout ; 

 the tip black, often bent outward, tapering rather abruptly ; the lip- 

 edges hyaline, rather prominent and outwaixlly oblique. Receptacle 

 pale reddish amber or yellowish, becoming variously suffused with dark 

 olive brown, especially distally ; the basal cell more commonly narrow 

 and hyaline below ; abruptly broader and suffused with dark olive 

 brown below the base of cell II, which is often abruptly broader through 

 a slight inflation in this region, and similarly suffused, the suffusions 

 often faint; cells III to V often deeply suffused with olive brown, 

 faintly striate ; cells III and IV subequal ; cell V extending more or less 

 prominently upward along the inner margin of the perithecium which is 

 further bordered by cells III and IV ; the insertion-cell carried obliquely 

 outward by these modifications. Basal cell of the outer appendage 

 usually hyaline, bearing normally two branches ; the basal cell of the 

 inner hyaline, that of the outer often small and blackened, bearing two 

 branchlets ; the outer shorter, more slender, opaque (usually broken) ; 

 the basal cell of the inner appendage similar to that of the outer, often 

 protruding somewhat inward, bearing two branches like the outer, or 

 less often laterally, that next the perithecium bearing one or more 

 antheridial branchlets ; the antheridia terminal in groups of two or 

 more, sometimes densely clustered; the other bearing similar anthe- 

 ridial branchlets or more often one or more long sterile branchlets like 

 the outer appendage ; all the sterile branches usually elongated in a 

 sweeping curve toward the perithecium, commonly rich brown or nearly 

 opaque, sometimes hyaline, sometimes multiplied by branching close to 

 the base. Spores 65 X 5 fi. Perithecia 90-125 X 40-55 jU . Recep- 

 tacle 200-335 (i. Appendages 290-725 p. Total length to tip of 



